Weird Inventions That Saved Lives: The Iron Lung

Blogger: Amber (Schamel) Lemus

Continuing our series of Weird Inventions That Saved Lives, we come to a more well-known device: the Iron Lung. Most of us know what it is or have heard of a family member or friend who was treated with one in the 50s and 60s. I was just talking to someone the other day whose uncle was confined to an Iron Lung during the Polio pandemic. But while most of us are familiar with the device, we may be less familiar with the history behind its invention. 

Boy being treated in an iron lung.
Photo:National Museum of  Health and Medicine,
CC BY 2.0

This device was used mainly during the Polio pandemics of the 1920s-1960s. To us, the device looks like something that would be used to torture someone, but in reality, it was this peculiar device that saved the lives of thousands. 

The invention of the iron lung began in 1670 when an English inventor by the name of John Mayow came up with the idea of negative pressure. "Negative pressure" is what our bodies use to breathe naturally, basically the vacuum effect that your diaphragm and other muscles create to pull air into your lungs. The idea of a "negative pressure" ventilator is to have an external vacuum or diaphragm that creates that same effect. Mayow built a small model demonstrating his theory with a bellows and bladder to push and expel air. 

Building on this foundational idea of negative pressure, British physician John Dalziel built the first negative pressure ventilator in 1832. Several other prototypes followed and were used successfully in Europe and South Africa. 

The greatest need for the negative pressure ventilators came during the Polio pandemics. The terrible disease of Polio would damage the muscles and patients would no longer be able to breath, since the muscles operating their lungs would cease to function. Therefore, the idea was that a device was needed to help these patients breathe in the same way their muscles should. 

In 1928 Phillip Drinker and Louis Shaw of the United States developed a machine to do just that. It was first known as the "Drinker Respirator" but later became widely used and known as The Iron Lung. The first clinical use of the machine was at the Boston Children's Hospital on October 12, 1928. A twelve-year-old girl was plagued by respiratory failure from Polio and was on the brink of death. Her recovery, within minutes of being placed inside the machine, was almost miraculous and made the device widely popular. 

An image made popular by the movies
depicts a ward of iron lung machines.
Photo: public domain. 

As strange and terrifying as the device looks to us now, many patients described an overwhelming feeling of relief when placed inside the machine as their bodies received the air they needed to live. When faced with the terrifying reality of suffocation, the daunting machine was seen as salvation, not a reason for fear. 

However, the iron lung wasn't perfect. Even with its use, the death rate for those with respiratory paralysis who were treated with the machine was still somewhere between 80-90%. This was due to complications such as drowning in their own saliva (because their swallowing muscles were paralyzed too) or succumbing to organ failure due to acidosis caused by clogged airways. These issues are what led to the development of the modern ventilators, which instead use positive pressure to help the patient breathe. 

Even with its shortcomings, the Iron Lung saved untold thousands of children's lives. Some were treated only for a few weeks during recovery, others required the use of the Iron Lung every day for years. In fact, as of 2026 there is still one known patient who continues to use the Iron Lung in the United States. This individual has used the device for upwards of seventy years. 

Do you know anyone who was treated with the Iron Lung? I'd love to hear about it in the comments. 

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Two-time winner of the Christian Indie Award for historical fiction, Amber Lemus inspires hearts through enthralling tales She has a passion for travel, history, books and her Savior. This combination results in what her readers call "historical fiction at its finest".  

She lives at the foot of the Rocky Mountains with her prince charming and two boys. Between enjoying life as a boy mom, and spinning stories out of soap bubbles, Amber loves to connect with readers and hang out on Goodreads with other bookish peoples.

Amber is a proud member of the American Christian Fiction Writers Association. Visit her online at http://www.amberlemus.com/  and download a FREE story by subscribing to her Newsletter!